Finding the Fourth Proportional to 124,650,984.42, 187,827,310.67 and 102,429,664.74
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Solution
The fourth proportional to 124,650,984.42, 187,827,310.67 and 102,429,664.74 is: 154,343,654.40
Step by Step Solution
- Step 1: Write the proportion equation
124,650,984.42 : 187,827,310.67 = 102,429,664.74 : x - Step 2: Convert to fraction form
124,650,984.42/187,827,310.67 = 102,429,664.74/x - Step 3: Cross multiply
124,650,984.42x = 187,827,310.67 × 102,429,664.74 - Step 4: Simplify right side
124,650,984.42x = 19,239,088,460,431,776 - Step 5: Solve for x
x = 19,239,088,460,431,776/124,650,984.42 - Step 6: Final answer
x = 154,343,654.40
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.